Coil-winding machine.



E. n. Noms. COIL WINDING MACHINE. APPLICATION FILED MMI. 7| ISIS- IPaJD-IQII' De@ 4,1917.

2 SHEETS-SHEET I.

:IIIIIIIIIIIIIIIII WIL lfm y E. R. NOHRIS.

COIL WINDING MACHINE.

APPLICATION FILED MMI. 7. |913.

Patented Dec. 4,1917.

2 sIIEETs-sIIET 2.

ATTORNEY WITNESSIES;

nn srans .an c. i

JEDSON RYMAN NORBIS, 01E' EDGEWOD PARKLPENNSYLVANIA, ASSGNOR T0 WEST- INGHOUSE ELECTRIC AND MANUFACTURING COMPANY, .A CORPORATION OF PENN'.-

SYLVANIA.

COILWWINDING MACHINE.

Specification of Letters Patent.

Patented Den 4, 191W..

To all whom t may concern:

Be it known that I, EDsoN RYMAN NoRnrs,

a citizen of the United States, and a resident .Coil-Winding Machines, of which thel following is a specification.

My invention relates to improvements in molds or formers for the winding of strap or wire into coils which are adapted for use in electrical apparatus, and it relates particularly to adjustable molds or formers whereby coils of different dimensions and various diameters of wire may be wound.

Heretofore, a mold of the pyramidal type of construction did not permit of adjustment of the core block for the winding thereon of coils of different internal dimensions. This necessitated a collection of eX- pensive molds in order to make the necessary coils used in the manufacture of electrical machines and, when similar coils of different dimensions that did not vary over wide ranges, were required, the cost of the numerous molds used for supplying such coilsv precluded economical manufacture.

My invention provides a mold wherewith coils somewhat similar but varying in dimensions between certain limits, may be satisfactorily wound and wherein the adjustments required for the purpose of winding these coils, are easily made.

The object of my invention is to provide a mold, of the pyramidal type for the winding of coils, in which the core structure or mandrel is adjustable for various cross-sectional dimensions of the interiors of the coils.

@ther features of my invention will be apparent from the following description,

, although, in describing the details, l do not wish it to be understood as thereby limiting my claims to such details unless so speci- For a better understanding of the nature and the characteristic features of my invention, reference is had to the following description of the accompanying drawings which embody a form of my invention.

Figure 1 is a view, partially in elevation and partially insection, .of a device to be hereinafter described. Figs. 2 and 3 are partially sectional plan andi- .sde views respectively, of a portion of said device, the same being constructed in accordance with my invention. Throughout the drawings the same reference numerals designate similar elements.

Referring to the figures, a circular face plate l, which is keyed to an arbor 2, of a lathe head 3, serves as a supporting means for the mold structure. Positioned upon the front portion of the face plate 1, are similar sections or halves 4 which comprise the base plate of the mold. Each of the sections 4 is provided with a rectangular shaped tongue 5 which lits slidingly into a diametral recess 6 of the face plate 1. The sections of the base plate are separated on a line perpendicular to the direction of the recess 6 and are held in their relative positions by means of adjusting screws 7 which project through sleeves 8 and engage tapped holes 9 formed in the base plate sections. The sleeves 8 are secured rigidly to the face plate by means of nuts 10 that are screwed upen threaded extensions 11 of the sleeves which project through openings 12 leading from the bottom of the recess 6.

Mounted upon each of the base plate sections 4 are two pyramidal sections 13 which, in combination, form the frustum of a pyramid whose base is positioned adjacent to the base plate. A recess 14, being cut in each base platevsection and located perpendicularly to the direction of the recess 6,

provides a seat for a tongue 15 formed on each of the pyramidal sections 13.

By means of stud bolts 16, the heads of which engage elongated washers 17 and the Shanks of which project through openings 18 in the face plate 1 and openings 19 at the bases of the recesses 14, the pyramidal sections are secured adjustably to the base plate. Having sliding engagement with each of the pyramidal Sections 13 is an `angle block 20, said engagement being eifected by means of feather keys 21 that are secured to each angle block and slide in key-ways 22 which are cut in the external faces of the pyramidal sections, substantially as shown in the drawings. The combination of the four angle blocks 20 that are positioned upon the pyramidal sections 13, forms the core block of the mold, and the shape of the angle blocks 20 is such that, whatever may be their ,common location on the pyramdal sections 13, they will form a rectangular cross-section for the core block of the mold.

The type of construction of a mold which embodiesV angle blocks and the frustum of a pyramid, provides for the easy removal of the wound coil by sliding the angle blocks simultaneously toward the apex of the pyramid, thus decreasing the cross-sectional dimensions of the core block and allowing the coil to be removed therefroni without binding. This feature in molds is not new and I do not claim it as my invention, but the pyramidal type mold, which permits of adjustment of thev cross-sectional dimensions ofthe mandrel or core block, as embodied in the construction described above, is new and the means of securing those adjustments will be explained. By means of the two adjusting screws 7, the base plate sections 4 may be separated in adire'ction parallel to the direction of the recess 6, the degree of separation being dependent upon the threaded pcrtionsjof the adjusting screws 7, the location of the sleeves 8 and the size of the openings 18 in the face plate l. VThe angle blocks and pyramidal sections being held to the base plate sections7 are thus positioned, depending upon the predetermined cross-sectional `dimension of the core block which is parallel to the direction of the recess, 6. A calibrated scalev 23, mounted upon the face plate 1, substantially` as shown in Fig. 3, assists in positioning the base plate sections.

I The elongated washers 17 which bridge the large openings 18 of the face plate, as shown in Fig. 3, permit the bolts 16 to be placed in any position in the said openings that maybe necessary for the proper positioning ofthe ,pyramidal sections, which are movable relatively to the base plate sections in a direction at right angles to the direction of the recess 6. In this way, the predetermined cross-sectional dimension Aof the core block, which is parallel to the direction of the recesses 14 and perpendicular to the direction of the recess 6, is obtained.y Thus, by means of the two adjustments, viz: that of the base plate sections andythat of the angle blocks, the cross-sectional dimensions of the core of the moldmay be varied for the winding thereon of coils which have differently diinensioned openings.

As shown in Fig. yl, upon each of the angle blocks 20 is Vadjust'ably secured aquarter section 24 of the front end block of the mold. Screws l25, Vprojecting through slots 26 formed in the lateral projections of the front end block sections 24, engage with tapped holes 27 in the angle blocks 20, thereby permitting adjustment of the core block length to conform to the predetermined length of the coil which i's'to be wound. The core block length, which is measured between the outer =faces `of the quarter sections424 and the adjacent face of an end block 28, may

be adjusted further by means of cylindrical rods 29 slidingly engaging the bores 30 in the sections 24 of the front end block. The rods 29 are held securely in theirI required positions by set screws 31. By abutting the rods 29 against the face plate 1, the front end block is assured of being maintained in a definite position relatively to the end block 28.

A removable grooved device or wire spacer 32, preferably made of brass, is held by means of two rectangular shaped keys 33 in a trough which is formed in each angle block 20, the said keys being secured to the angle block by means of screws 34, and so disposed as to engage the luiy-ways cut in the wire spacer. A recess formed in each section 24 of the front end block permits one extremity of the wire spacer to project therein. This construction adapts the saine wire spacer to coils of different lengths in which the same diameter of wire is used. The purpose of the wire spacers is to assist in the spacing of the turns of wire in the first layer of the coil at the beginning ot the winding operation, and they also eliminate sharp corners, thereby protecting the insulation on the wire. The sii/ie of the grooves in the wire spacers required 'tor a particular winding operation, is dependent upon the size of the wire which is to be wound into a coil.

A member 35, radially positioned upon each quarter section 24 of the front end block and slidingly engaging a recess 36 formed therein, is jnfovided with a circular recess 37 by means of which the member 35 may fit over the wire spacci' 32 and thereby prevent the jamming or the forcing of a wire into the space between the adjacent surfaces of the quarter section 24 and the wire 'spacer 32. The member is so designed that its exposed surface is flush with the surface of the quarter section of the end block upon which it is located and its position is adjustable by means of a stud and wing nut 3S which permit of the retention of the member 35 in a position out of contact with the wire spacer.

Tn removing the wound coil from the core block of the molch the end block 28 is unscrewed from the arbor 2, and the angle blocks are forced to slide upon the pyramidal sections toward the threaded end of the arbor. This movement of the angle blocks is limited by the engagement of pins 39 with recesses 40, the said pins being held to the pyramidal sections and projecting into the recesses 40 which are cut in the angle blocks. This limited movement of the :ingle blocks permits a suliicient decrease in the cross-sectional dimensions of the core block to allow the easy removal of the wound coil therefrom. Y

I desire that modiications not departing from the spirit of my invention shall be included within its scope.

I claim as my invention:

1. A mold for coil Winding comprising a plurality of angular tapered supports that are relatively adjustable to vary the circumferential form and dimensions of the mold, and blocks respectively mounted upon the angles of the said supports.

2. A mold for coil Winding comprising a plurality of angular tapered supports that are relatively adjustable to vary the circumferential form and cross sectional dimensions of the mold, and blocks mounted upon the angles of the said supports and adjustable longitudinally thereof.

3. A mold for coil Winding comprising a plurality of angular tapered supports, means for adjusting the relative positions of the said tapered supports, and angle blocks mounted upon the said supports and adjustable longitudinally thereof.

t. A mold for coil Winding comprising a sectional frusto-pyramidal member the sections of Which are adjustable, and angle blocksmounted upon the angles of the said sections of the frusto pyramidal member.

5. A mold for coil Winding comprising a sectional frusto-pyramidal member the sections of which are relatively adjustable to vary the circumferences of the frusto pyramidal member, and angle blocks mounted upon the angles of the said sections and adjustable longitudinally thereof.

6. A mold for coil Winding comprising a plurality of pyramidal frustums, means for adjusting the relative positions of the said pyramidal frustums, and movable angle blocks mounted upon the angles of the said pyramidal frustums.

7. A mold for coil Winding comprising a plurality of angular adjustable members, said members in combination forming a frustum of a pyramid, and angle blocks mounted upon the said members and adjustable longitudinally thereof.

8. A mold for coil Winding comprising a mandrel, end members provided With recesses, spacers mounted upon the mandrel and extending into the recess in the end members, means for securing the spacers upon the mandrel, and means for covering the unoccupied portions of the said recesses.

9. A mold for coil Winding comprising a mandrel, end members provided With recesses, and guides lfor spacing each turn of the first Wound layer of a coil, said guides being mounted upon the mandrel and extending into the recesses of the end members.

l0. A mold for coil Winding comprising a mandrel, adjustable end members provided With recesses, removable guides for spacing each turn of the first Wound layer of a coil, said guides being mounted upon the mandrel and extending into the recesses of the end members, and adjustable means for covering the unoccupied portions of the said recesses.

In testimony whereof, I have hereunto subscribed my name this 26th day of February, 1913.

EDSON RYMAN NORRIS. Witnesses:

W. J. KAUP, B. B. HINns.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, 1D. G. 

